22240739 has 2 divisors, whose sum is σ = 22240740. Its totient is φ = 22240738.

The previous prime is 22240721. The next prime is 22240753. The reversal of 22240739 is 93704222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22240739 - 2¹⁶ = 22175203 is a prime.

It is a super-2 number, since 2×22240739² = 989300942532242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22240759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11120369 + 11120370.

It is an arithmetic number, because the mean of its divisors is an integer number (11120370).

Almost surely, 2^22240739 is an apocalyptic number.

22240739 is a deficient number, since it is larger than the sum of its proper divisors (1).

22240739 is an equidigital number, since it uses as much as digits as its factorization.

22240739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 22240739 is about 4716.0087998222. The cubic root of 22240739 is about 281.2222883643. Note that the first 4 decimals are identical.

The spelling of 22240739 in words is "twenty-two million, two hundred forty thousand, seven hundred thirty-nine".